321112101 has 8 divisors (see below), whose sum is σ = 431230240. Its totient is φ = 212534352.

The previous prime is 321112093. The next prime is 321112151. The reversal of 321112101 is 101211123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321112101 - 2³ = 321112093 is a prime.

It is a super-2 number, since 2×321112101² = 206225962817268402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321112151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384610 + ... + 385443.

It is an arithmetic number, because the mean of its divisors is an integer number (53903780).

Almost surely, 2^321112101 is an apocalyptic number.

It is an amenable number.

321112101 is a deficient number, since it is larger than the sum of its proper divisors (110118139).

321112101 is a wasteful number, since it uses less digits than its factorization.

321112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770195.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 321112101 is about 17919.6010279247. The cubic root of 321112101 is about 684.7818233543.

Adding to 321112101 its reverse (101211123), we get a palindrome (422323224).

The spelling of 321112101 in words is "three hundred twenty-one million, one hundred twelve thousand, one hundred one".